brewer



2 Sheets-Sheet 1. H. J. BREWER.

GALVANIG BATTERY.

(No Model.)

Patented Sept. 13, 1887.

INVENTO'B ATTORNEYS.

N PETERS. Pnmum m. Wuhinglun. 0.0.

(No Model.) 2 Sheets-Sheet 2. H. J. BREWER.

GALVANIG BATTERY. No. 369,769. Patented Sept. 13,1887.

WITNESSES! INVENTOR:

ATTORNEYS.

UNITED STATES HORATIO J. BREWER, OF NEWV YORK, N. Y.

GALVANIC BATTERY.

SPECIFICATION forming part of Letters Patent No. 369,769, dated September 13, 1887.

' Application filed November 8, i886. Sc1-ial1\'o.218,264. (No model.)

the conducting carbon electrode are inclosed in a bag.

The object of my invention is to provide a new and improved battery which is simple and durable in construction and very effective in operation.

The invention consists of a method of filling and packing the electro-negative material in a bag tightly around the carbon electrode, and maintaining a firm contact between the said electrode and the electronegative material.

The invention also consists of various parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional side elevation of my improvement. Fig. 2is a bottom View of the bag holding the carbon electrode and the electro-negative material, and Figs. 3 and 4 are sectional side elevations of modified forms of my improvement.

In the jar .A, of suitable size and form, is placed the bag B, which contains the electronegative material VC and part of the electrode D, of carbon or other suitable material.

The carbon electrode can be straight or provided with inclined sides, and it'has a base or bottom plate, E, which is preferably a disk of carbon, but may be of wood or other material, and is looselyconnected with the carbon electrode, or is a part of the said electrode,as shown in Fig. 4; or the base may be adapted to slide on the carbon electrode, as shown in Fig. 3. In the latter form I also provide the carbon electrode with an offset, D, so as to prevent the said electrode from being lifted upward and out of the bag.

The electrodeD extends above the cover F of the jar A, and carries the usual screw or binding-post, G. The zinc electrode is of the usual construction, and needs no further description.

Vhen an electrode with inclined sides is used, as shown in Fig. 1, then Ifillthe bag in the following manner: The empty bag is held upside down and the electrode D is placed in the mid dle of the bag, with its upper thinner end in the aperture B of the bag B. The latter is now filled with the electro-negative material C, so that it surrounds the electrode D, and the said electrode, after the filling, is pressed inward to the desired depth, so that the electro-nega tive material presses and packs tightly in the bag around the electrode D on account of the inclined sides of the latter. The base or bottom plate, E, is then pressed into the open end of the bag and joined with the electrode D. The open end of the bag is then drawn over the edge of the base E upon the bottom of the same, and the draw-string H, held in a welt at the end of the bag 13, is drawn tight, pressing the electrode D downward on the plate E, and knotted, thus holding the bag closed and locked. Instead of using a draw string, H, I may employ any other device for drawing the bag over the base, and then looking it in position.

It will be seen that the opening Bin the top of the bag 13, through which the electrode D is pressed, will enlarge itself with theincreased diameter of the electrode D, when the latteris pressed downward, and the bag will fit snugly around said elect-rode when the latter is in its innermost position,as shown in the drawings in Fig. 1. I In case that the electro-negative ma terial G in the bag B settles after the battery has been used, then the draw-string H is again tightened, so as to take up any slack of the bag 13.

WVhen an electrode with straight sides and a movable base is used, as shown in Fig. 3, then the bag is filled with the material C after the electrode, without its base, is inserted, so that its offset D rests on the inside of the bag at B. The base E is then passed over the end of the electrode and pressed inward on the electrode, so that the material is firmly packed in the bag 13 and pressed against the electrode D. The draw-string is then tightened on the base, as above described, so that the base will be pressed inward against the material.

In the modification shown in Fig. 4 I proceed in a similar mannerthat is, the electrode is inserted with its upper end in the aperture B, so that the stationary base E 'is out of the bag and permits the operator to place the material C in the bag. After this has been accomplished, the electrode D, with its base, is pressed inward until the base enters the bag and presses against the material C. The end of the bag is then drawn over the base, and fastened in the same manner as above described.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. In agalvanicbattery,theherein-described method of filling'the bag, consisting of holding the bag upside down and inserting the negative electrode in the top aperture of the bag, and then pressing the electro-negative material into the said bag, after which the negative electrode is forced downward, so that its inclined or wedge-shaped sides pack the electro-ne'gative material tightly against the bag and the said sides of the negative electhe said sides of the electrode, and then the base or bottom plate is placed in the open end of the bag, which is drawn tightly over the edge of the said bottom plate and fastened by a suitable device, substantially as shown and described.

3. In a galvanic battery, the combination, with a bag, of electro-negative material placed in the said bag and an electrode having inclined sides, substantially as shown and described.

4. In a galvanic battery, the combination, with a jar, of a bag placed in the said jar, an electrode provided with a base or bottom plate held in the open end of the said bag, electronegative material placed in the said bag and surrounding the said electrode, and means for fastening the end of the bag on the base of the electrode, substantially as shown and described.

5. In a galvanic-battery, the bag B, having the aperture B, and means for closing the open end of the said bag, in combination with the electrode D, the electro negative material 0, held in the said bag and surrounding the said electrode D,and the base E,fittinginto the open end of the said bag and held in place by the lower end of said bag being drawn over said base, and fastened in position by suitable means, substantially as shown and described.

HORATIO J. BREWER.

Witnesses:

THEo. G. HosTER, o C. SEDGWIOK. 

